| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 가을 (10/06 ~ 10/08, 대구컨벤션센터(EXCO)) |
| 권호 |
40권 2호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
Ternary composites of SnO2 with RGO and PEDOT:PSS for high lithium storage ability |
| 초록 |
We propose ternary composites of SnO2 with reduced graphene oxide (RGO) and poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS). In the composites ~3 nm SnO2 particles are uniformly distributed over RGO nanosheets and covered with PEDOT:PSS. RGO increases conductivity and alleviate volume change of SnO2. Conducting polymer PEDOT:PSS also increases the conductivity of SnO2. Therefore, in the ternary composites conductivity of SnO2 increased greatly and its volume change was minimized. As a result, the ternary composites show higher capacity than RGO/SnO2 binary composites. The capacity of the ternary composites decrease with the increasing amount of PEDOT:PSS. Composite with 5 wt% PEDOT:PSS shows capacity of 980 mAh/g (1185 mAh/g with respect to SnO2) and Coulombic efficiency ＞99% after 160 cycles operated at 80 mA/g. High capacity was attributed to the small diffusion path of Li+, minimization of volume change and increase in conductivity offered by RGO and PEDOT:PSS. |
| 저자 |
유필진1, Won-Sub Yoon1, Shoaib Muhammad1, selim arif sher shah2
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| 소속 |
1Sungkyunkwan Univ., 2SungkyunKwan Univ. |
| 키워드 |
Li ion battery; SnO2; PEDOT:PSS; RGO; nanocomposite
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| E-Mail |
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